import logging
import logging.handlers
import os
import platform
import pprint
from . import release
import sys
import threading
import time

import psycopg2

import odoo
from . import sql_db
from . import tools

_logger = logging.getLogger(__name__)

def log(logger, level, prefix, msg, depth=None):
    pass

class PostgreSQLHandler(logging.Handler):
    def emit(self, record):
        pass

BLACK, RED, GREEN, YELLOW, BLUE, MAGENTA, CYAN, WHITE, _NOTHING, DEFAULT = range(10)
RESET_SEQ = "\033[0m"
COLOR_SEQ = "\033[1;%dm"
BOLD_SEQ = "\033[1m"
COLOR_PATTERN = "%s%s%%s%s" % (COLOR_SEQ, COLOR_SEQ, RESET_SEQ)
LEVEL_COLOR_MAPPING = {
    logging.DEBUG: (BLUE, DEFAULT),
    logging.INFO: (GREEN, DEFAULT),
    logging.WARNING: (YELLOW, DEFAULT),
    logging.ERROR: (RED, DEFAULT),
    logging.CRITICAL: (WHITE, RED),
}
class PerfFilter(logging.Filter):
    def format_perf(self, query_count, query_time, remaining_time):
        pass

    def filter(self, record):
        pass


class ColoredPerfFilter(PerfFilter):
    pass

class DBFormatter(logging.Formatter):
    def format(self, record):
        record.pid = os.getpid()
        record.dbname = getattr(threading.current_thread(), 'dbname', '?')
        return logging.Formatter.format(self, record)

class ColoredFormatter(DBFormatter):
    def format_perf(self, query_count, query_time, remaining_time):
        pass

class DBFormatter(logging.Formatter):
    def format(self, record):
        record.pid = os.getpid()
        record.dbname = getattr(threading.current_thread(), 'dbname', '?')
        return logging.Formatter.format(self, record)

class ColoredFormatter(DBFormatter):
    def format(self, record):
        pass

_logger_init = False
def init_logger():
    global _logger_init
    if _logger_init:
        return
    _logger_init = True

    old_factory = logging.getLogRecordFactory()
    def record_factory(*args, **kwargs):
        record = old_factory(*args, **kwargs)
        record.perf_info = ""
        return record

    logging.setLogRecordFactory(record_factory)

    logging.addLevelName(25, "INFO")
    logging.captureWarnings(True)

    from .tools.translate import resetlocale
    resetlocale()

    format = '%(asctime)s %(pid)s %(levelname)s %(dbname)s %(name)s: %(message)s %(perf_info)s'

    handler = logging.StreamHandler()

    if tools.config['syslog']:

        if os.name == 'nt':
            handler = logging.handlers.NTEventLogHandler("%s %s" % (release.description, release.version))
        elif platform.system() == 'Darwin':
            handler = logging.handlers.SysLogHandler('/var/run/log')
        else:
            handler = logging.handlers.SysLogHandler('/dev/log')
        format = '%s %s' % (release.description, release.version) \
                 + ':%(dbname)s:%(levelname)s:%(name)s:%(message)s'

    elif tools.config['logfile']:
        pass
    def is_a_tty(stream):
        return hasattr(stream, 'fileno') and os.isatty(stream.fileno())

    if os.name == 'posix' and isinstance(handler, logging.StreamHandler) and is_a_tty(handler.stream):
        pass

    else:
        formatter = DBFormatter(format)
        perf_filter = PerfFilter()
    handler.setFormatter(formatter)
    handler.setFormatter(formatter)
    logging.getLogger().addHandler(handler)
    logging.getLogger('werkzeug').addFilter(perf_filter)

    if tools.config['log_db']:
        pass

    pseudo_config = PSEUDOCONFIG_MAPPER.get(tools.config['log_level'], [])

    logconfig = tools.config['log_handler']

    logging_configurations = DEFAULT_LOG_CONFIGURATION + pseudo_config + logconfig
    for logconfig_item in logging_configurations:
        loggername, level = logconfig_item.split(':')
        level = getattr(logging, level, logging.INFO)
        logger = logging.getLogger(loggername)
        logger.setLevel(level)

    for logconfig_item in logging_configurations:
        _logger.debug('logger level set: "%s"', logconfig_item)



DEFAULT_LOG_CONFIGURATION = [
    'odoo.http.rpc.request:INFO',
    'odoo.http.rpc.response:INFO',
    ':INFO',
]
PSEUDOCONFIG_MAPPER = {
    'debug_rpc_answer': ['odoo:DEBUG', 'odoo.sql_db:INFO', 'odoo.http.rpc:DEBUG'],
    'debug_rpc': ['odoo:DEBUG', 'odoo.sql_db:INFO', 'odoo.http.rpc.request:DEBUG'],
    'debug': ['odoo:DEBUG', 'odoo.sql_db:INFO'],
    'debug_sql': ['odoo.sql_db:DEBUG'],
    'info': [],
    'warn': ['odoo:WARNING', 'werkzeug:WARNING'],
    'error': ['odoo:ERROR', 'werkzeug:ERROR'],
    'critical': ['odoo:CRITICAL', 'werkzeug:CRITICAL'],
}